COMMUNICATION COMMUNICATION CHANNELSCHANNELS

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PLAN OF PRESENTATIONPLAN OF PRESENTATION

WHAT BASICALLY A COMMUNICATION IS?

PHYSICAL TRANSMISSION MEDIA

COMMUNICATION CHANNELS

WIRELESS TRANSMISSION MEDIA

CONCLUSION

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WHAT BASICALLY A COMMUNICATION IS?

Communication is the process in which we can transfer our sorts or our information from one place to another.

As well as when we are talking about computer communication its describe a process in which one computer transfer data, instructions and information from one computer to an other.

COMMUNICTIONS CHANNELSCOMMUNICTIONS CHANNELS

PHYSICAL TRANSMISSION MEDIAPhysical transmission media used in communications include twisted-pair cable,

coaxial cable and fiber-optics cable. These cables typically used within buildings and underground Ethernet. Ethernet and token ring LANS often use physical

transmission media.

WIRELESS TRANSMISSION MEDIA Wireless transmission media are used when it is inconvenient, or impossible to installed cables. Wireless transmission media used in communication includes

broadcast radio, cellular radio, microwaves, communication satellites, and infrared.

An important aspect of communication is the channel, which is communications path between two devices . Bandwidth is the width of the communication channel. The higher the bandwidth the more the data and information the channel can transmit.

PHYSICAL TRANSMISSION MEDIAPHYSICAL TRANSMISSION MEDIATwisted Pair Cable

One the more commonly used transmission media for network cabling and telephone system is twisted pair cable. Twisted pair cable consists of one or more twisted-pair wires bundled together.

Coaxial Cable

Coaxial cable, consists of a single copper wire surrounded by at least three layers; (1) an insulating material, (2) a woven or braided metal, and (3) a plastic outer coating.

Fiber-Optics Cable

It is another type of transmission media. The core of a fiber-optics cable consist of dozens and hundreds of thin strands of glass or plastic that use light to transmit signals.

WIRELESS TRANSMISSION MEDIAWIRELESS TRANSMISSION MEDIA

BROADCAST RADIO

Broadcast radio is a wireless transmission medium that distributes radio signals through the air over long distance, such as between cities, regions, and countries and short distance such as within an office and home.

CELLULAR RADIO

Cellular radio is a form of broadcast radio that is use widely for mobile communications, specially wireless modems and cellular telephone

MICROWAVES

Micro waves are the radio waves that provide a high signal transmission. Microwaves transmission involve sending signals from one microwaves station to another.

COMMUNICAITON SATELLITE

A communication satellite is a space station that receive microwaves signal from an earth based station, amplifies the signal and broadcast the signal back over a wide area to any number of earth-based station.

INFRARED

Infrared is a wireless transmission media that sends signals using infrared light waves. It is similar to microwaves, infrared transmission requires a line-of-sight transmission.

CONCLUSIONCONCLUSION At the end I want to say that there is no

communication without communication channels because without the channel we can’t transmit our

data from one place to another.